The annual pre-season kick-off meeting was held in Helsingborg on 27 March 2012. All managers accompanied with a key player for their team were interviewed by the two hosts Tommy Åström and Jens Fjellström about the upcoming season and their expectations as well as what team they held as favourites to win the title. Only Kalmar FF's manager Nanne Bergstrand and Malmö FF's Rikard Norling held their own team as the title favourite. 5 managers out of 16 believed that Malmö FF would win the title. The remaining managers placed their bets on IF Elfsborg (4 votes), IFK Göteborg (3 votes), Helsingborgs IF (2 votes) and Kalmar FF (2 votes). The entire attendance consisted of the clubs managers, key players and media experts. The attendance voted Malmö FF as the title favourites with Helsingborgs IF and IFK Göteborg closely after. The attendance also predicted that GIF Sundsvall and Syrianska FC would be relegated while Åtvidabergs FF would have to play the relegation play-offs to remain in the league.[5]

The season started on 31 March 2012 with three fixtures. Several of the favourite teams got off to a struggling start, reigning champions Helsingborg found themselves in a mid-table position after the first four rounds of fixtures. Malmö and Kalmar also positioned themselves mid-table at the same time and IFK Göteborg failed to win any of their first four matches, finding themselves in 15th position. Elfsborg however won all of their matches in the beginning of the season except for the away fixture against Helsingborg which they lost 2–1.[6] Åtvidaberg lead the league surprisingly after three consecutive wins and one loss in the start of the season.

Following the fourth round Elfsborg passed Åtvidaberg to become the new leaders of the league. The team managed to win all of the remaining matches until the Euro break except for the away fixture against Malmö which they lost 1–0,[7] Elfsborg won seven consecutive matches during this run. Malmö eventually recovered from a poor start of the season to trail Elfsborg eight points below at the time of the Euro break. AIK and Häcken also managed to win enough points to keep up with the top, trailing Malmö with one and two points respectively at the same time. Reigning champions Helsingborg found themselves in fifth place in time for the summer break, trailing fourth placed Häcken with two points and leaders Elfsborg with 12 points. Early leaders Åtvidaberg had by this time dropped down to sixth place and were now trailing Helsingborg. One of the early favourite to win the title, IFK Göteborg, were by this period of time positioned 10th in the league table. trailing Elfsborg with as much as 15 points. Another favourite, Kalmar, were positioned in 13th place. Örebro were found at the bottom of the league table at the time of the Euro break having failed to win any of the 12 fixtures being played at that time and only having been able to draw four of the matches, they were now trailing 15th placed GAIS with five points and 13th placed Kalmar with nine points.

Later on in the season, four teams had emerged as the favourites to win the title. With five rounds remaining Elfsborg had 49 points, Häcken and AIK both had 47 points and Malmö had 46 points. At the other end of the Allsvenskan table, it appeared as if both Örebro and GAIS were headed towards Superettan, trailing the 14th team in the league by 11 and 14 points, respectively. GAIS were confirmed as relegated after the completion of the 26th round and Örebro followed after the 27th round. Elfsborg held pole position until the 23rd round when they were passed by Häcken, Elfsborg had held the first position since the 5th round up until then.

Elfsborg would get ten out of 15 possible points in their last five games - winning against GAIS, losing against Norrköping, then winning against Gefle and Mjällby before finishing with 1–1 against Åtvidaberg - which would prove to be enough for them to win their sixth title.

Source: svenskfotboll.se(Swedish)
Rules for classification: 1) points; 2) goal difference; 3) number of goals scored1IFK Göteborg qualified for the 2013–14 UEFA Europa League second qualifying round by winning the 2012–13 Svenska Cupen.2 Sweden was among the best three associations in the UEFA Fair Play ranking and thus received an additional spot in the first qualifying round of the Europa League, Gefle IF received the qualifying spot for their ranking in Allsvenskans Fair Play ranking.[21](C) = Champion; (R) = Relegated; (P) = Promoted; (E) = Eliminated; (O) = Play-off winner; (A) = Advances to a further round.
Only applicable when the season is not finished:(Q) = Qualified to the phase of tournament indicated; (TQ) = Qualified to tournament, but not yet to the particular phase indicated; (RQ) = Qualified to the relegation tournament indicated; (DQ) = Disqualified from tournament.